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stepper motor and controller integrated
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resolution up to 600,000 pos./revolution
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step width down to 1nm
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physical units (mm, mm/s etc.)
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high velocity range: 0.1µm/s to 40mm/s (with a spindle pitch of 1mm)
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torque up to 10Nm (with gearbox)
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max. speed 40 rev./s
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up to 16 devices can be connected
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closed loop interface (1Vpp)
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communication interfaces: RS-232 and CAN bus
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ASCII command language
 Venus
-2
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an industrial version with robust connectors is available
Application areas
Microscopy
microscope stage controller
focus controller
image processing
General measuring technique
optical 3D measuring technique
Robotics
Stewart platforms
Concept
The self-imposed challenge to integrate controller and motor has led to this intelligent positioning module. The standards were high, because we wanted the smallest member of the ITK controller family to have similar characteristics to the rest of the family. This objective was achieved and ITK has demonstrated with the
Pollux
controller that expertise and creativity can lead to new solutions. Key features
Pollux is the most compact positioning controller in this power class worldwide. Its application in domains like microscopy and precision positioning provides an indication of the performance data of this controller: high resolution, low power dissipation, high constant velocity with low running noise.
Positioning
Pollux is a positioning controller. Two positioning modes are possible: a given absolute or relative position or a given velocity and direction. The Pollux modules can be connected and work independently. Nevertheless, it is possible to realise a synchronous positioning of multiple modules, using the Venus-2 synchronous commands.
Axis extension
Pollux can be extended, like a daisy chain, to up to 16 modules. Therefor, the modules are connected in a row, using the "daisy chain" cables.
Resolution
The axis modules are equipped with a 16bit DSP that can compute position input down to 1nm. After that, the signal is transformed into a rotor angle.
Versions
Pollux is available in different versions. These vary in maximum speed, torque and resolution of the stepper motor. Furthermore, all Pollux drive versions are available with gearbox. Pollux is also available in a box version without motor.
Programming
The program-controlled operation is realised via the command language Venus-2.
Programming support
To support the software developer, a free API (function library) with different sample programs is available. It supports all functions of the controller.
Operation program
We provide the program "motion manager" to operate the controller.
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